Highly charged solar evaporator toward sustainable energy transition for in-situ freshwater &amp; power generation

Irshad, Muhammad Sultan; Hao, Yabin; Arshad, Naila; Alomar, Muneerah; Lin, Liangyou; Li, Xiuqiang; Wageh, S.; Al‐Hartomy, Omar A.; Al‐Sehemi, Abdullah G.; Dao, Van‐Duong; Wang, Hao; Wang, Xiaochang C.; Zhang, Han

doi:10.1016/j.cej.2023.141431

Cited by 52 publications

(22 citation statements)

References 49 publications

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“…The integrated device successfully produces %14.66 kg m À2 of drinking water along with %45.4 W m À2 of energy generation and electric conversion efficiency (γ = 2.27%). [156] In addition to kinetic energy, particularly when evaporation occurs in a free-flowing environment without structured airflow, polyvinylidene fluoride (PVDF) cantilevers were created to capture the thermomechanical energy of vapor. [87,101] In combination with pyroelectric and piezoelectric processes, PVDF film can be heated-cooled and mechanically oscillated during evaporation to achieve a power density of 0.24 mW cm À2 .…”

Section: Waste Heat Recovery Via Thermoelectricitymentioning

confidence: 99%

Recent Advances in Multifunctional Photothermal Materials for Solar‐Driven Steam and Energy Generation

et al. 2023

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Solar‐driven evaporation technology is rejuvenated by multifunctional photothermal materials into complimentary energy conversion applications. These multifunctional materials endow broadband solar absorptions, chemical/physical stability, porous, and active sites for in ‐situ photodegradation with exceptional solar‐to‐vapor conversion efficiencies. The structural configuration of evaporation structures is significantly improved by effective thermal management and salt‐resistant water channels with balanced relation between evaporation flux and water intake. These attributes lead this technology to higher evaporation rates and complimentary applications such as waste heat recovery to thermoelectricity, salt collection from seawater, and micro‐organism disinfection from wastewater. This review comprehensively reports the recent advances in state‐of‐the‐art multifunctional materials, novel evaporation designs with significant structural optimization, and their small‐scale prototypes. The current challenges, origins, and possible solutions are provided. This systematic review inspires the nanoresearch community to push forward solar‐driven evaporation technology with superb complimentary energy conversion applications.

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Section: Waste Heat Recovery Via Thermoelectricitymentioning

confidence: 99%

Recent Advances in Multifunctional Photothermal Materials for Solar‐Driven Steam and Energy Generation

et al. 2023

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“…Hybrid solar evaporators are sought in terms of efficient solar-thermal conversion, effective thermal management via waste heat recovery into useful applications, such as thermoelectricity or water disinfection (hyperthermia effect), salt-collection strategies instead of salt accumulation or clogging in water channels, mechanical robustness, sustainability, and effective utilization of bio-waste as carbon sequestration agents. − For this, several nano-enabled materials have been explored to harvest maximum solar energy and enhance photothermal conversion efficiency, i.e., semiconductive hydrogels, carbon-based materials, in situ conductive polymerization, and plasmonic nanoparticles . However, these evaporation structures lack all desired functions in a single integrated system for the development of an ideal solar absorber. , In this contribution, three-dimensional (3D) geometries, i.e., conical shapes, origami rose, lotus flower, origami 3D, and cylindrical structures, address this dilemma to some extent by enabling multiple reflections of the incident light, and 3D interconnected porous networks, such as polyurethane foam, loofa fiber, and wood sponge, for continuous water transport. − However, these sponge-derived evaporation structures may cause higher thermal conduction to the water body, which lowers the photothermal conversion efficiency due to heat losses .…”

Section: Introductionmentioning

confidence: 99%

Biomass-Printed Hybrid Solar Evaporator Derived from Bio-polluted Invasive Species, a Potential Step toward Carbon Neutrality

Irshad

Arshad

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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Biomass-based photothermal conversion is of great importance for solar energy utilization toward carbon neutrality. Herein, a hybrid solar evaporator is innovatively designed via UV-induced printing of pyrolyzed Kudzu biochar on hydrophilic cotton fabric (KB@CF) to integrate all parameters in a single evaporator, such as solar evaporation, salt collection, waste heat recovery for thermoelectricity, sieving oil emulsions, and water disinfection from microorganisms. The UV-induced printed fabric demonstrates stronger material adhesion as compared to the conventional dip-dry technique. The hybrid solar evaporator gives an enhanced evaporation rate (2.32 kg/m2 h), and the complementary waste heat recovery system generates maximum open-circuit voltage (V out ∼ 143.9 mV) and solar to vapor conversion efficiency (92%), excluding heat losses under one sun illumination. More importantly, 99.98% of photothermal-induced bacterial killing efficiency was achieved within 20 min under 1 kW m–2 using the hyperthermia effect of Kudzu biochar. Furthermore, numerical heat-transfer simulations were performed successfully to analyze the enhanced interfacial heat accumulation (75.3 °C) and heat flux distribution of the thermoelectric generators under one sun. We firmly believe that the safe use of bio-polluted invasive species in hybrid solar-driven evaporation systems eases the environmental pressure toward carbon neutrality.

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“…The electrostatic repulsion of negatively charged SO 3 − in PSS helps to reject salt crystallization on the surface. 32,33 Eventually, the efficient water pumping and salt-tolerant capacity of PE-DOT:PSS-based hydrogels can efficiently facilitate solar vapor generation.…”

Section: ■ Introductionmentioning

confidence: 99%

“…As salts inevitably accumulate on the surface of the evaporator when continuously purifying water from brine, which blocks the water transport channel and reduces the solar energy absorption. , This ultimately results in a decrease in the evaporation rate. The electrostatic repulsion of negatively charged SO 3 – in PSS helps to reject salt crystallization on the surface. , Eventually, the efficient water pumping and salt-tolerant capacity of PEDOT:PSS-based hydrogels can efficiently facilitate solar vapor generation.…”

Section: Introductionmentioning

confidence: 99%

Synergy of Light Trapping and Water Management in Interconnected Porous PEDOT:PSS Hydrogels for Efficient Solar-Driven Water Purification

Cai

Zhao

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Interfacial solar water purification is emerging as a sustainable and environmental-friendly approach for solar energy harvesting and clean water production. Currently, the limited photothermal conversion efficiency restricts its practical applications. Developing evaporators with porous structures has been proposed as a promising way toward boosting solar-thermal-vapor conversion by enhancing energy utilization and evaporation area. However, effective collaboration between light capture and water management of porous evaporators is the main challenge for efficient freshwater production. Here, we reported a pure poly(3,4-ethylenedioxythiophene) (PEDOT):polystyrene sulfonate (PSS) hydrogel by in situ polymerization as a solar evaporator for water purification from saline water or wastewater. The interconnected and microporous structure of the PEDOT:PSS hydrogel (PPH) can dramatically trap light throughout broad incident angles as well as increase the active water content simultaneously, which is highly controlled by the PSS content. The PPH could efficiently convert the absorbed solar energy and wastewater into fresh water, thus leading to an excellent photothermal conversion efficiency of 96.4% and an evaporation rate of 2.43 kg·m–2·h–1 during purification of 3.5 wt % NaCl brine under one sun irradiation. This PPH exhibits sustainable and stable performance in 88 h when purified with 3.5 wt % simulated saline water, with an evaporation rate of ∼2.32 kg·m–2·h–1. What is more, this PPH performs satisfied performance in water purification (with the concentration of all ions dropping below 1 mg·L–1) from saline water, dye, and heavy metal wastewater. These results demonstrate that high evaporation performance could be achieved if effective light trapping and water management are ensured simultaneously. Thus, this study provides a new possibility for long-term, stable, and efficient water purification from wastewater.

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Highly charged solar evaporator toward sustainable energy transition for in-situ freshwater & power generation

Cited by 52 publications

References 49 publications

Recent Advances in Multifunctional Photothermal Materials for Solar‐Driven Steam and Energy Generation

Recent Advances in Multifunctional Photothermal Materials for Solar‐Driven Steam and Energy Generation

Biomass-Printed Hybrid Solar Evaporator Derived from Bio-polluted Invasive Species, a Potential Step toward Carbon Neutrality

Synergy of Light Trapping and Water Management in Interconnected Porous PEDOT:PSS Hydrogels for Efficient Solar-Driven Water Purification

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